Product Description:

Expanding perlite is a white granular material with a honeycomb-like internal structure, produced by preheating and instantly high-temperature calcining perlite ore sand. It is non-combustible, with a neutral pH value of 6.5-7.5, resistant to acids and alkalis, lightweight, and possesses strong adsorption and thermal insulation properties. Main chemical composition: SiO2 68-76%, Al2O3 11-16%, Na2O 4-5%. Main applications: Due to its excellent properties, expanding perlite is widely used...

Product Details

Expanded Perlite is a white granular material with a honeycomb-like internal structure, made by preheating and instant high-temperature roasting the perlite ore sand to expand it.

White granular with a honeycomb structure inside, non-flammable, pH neutral (pH 6.5-7.5), acid and alkali resistant, lightweight, with strong adsorption and heat-insulating properties.

Main Chemical Composition:

SiO2 68-76％ Al2O3 11-16％  Na2O 4-5％ 　

Primary Uses:

Due to its excellent thermal insulation properties, lightweight and porous nature, as well as abundant resources and low cost, expanded perlite is widely used in the following fields:

◆ Lightweight thermal insulation boards, interior partition boards, sound-absorbing panels, fire-retardant coatings, etc.

Insulation materials for industrial kilns and pipelines

◆ Filtration aids for beer, beverages, food, and medical use

◆ slagging materials for steelmaking process, cryogenic insulation material for air separation equipment

◆ Used for fillers, expanders in rubber, paint, plastic, etc.

◆ Soil conditioners, soilless cultivation substrates, and herbicide slow-release agents for agriculture and horticulture.